4 */ 5 /* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22 package com.sun.org.apache.bcel.internal.generic; 23 24 import com.sun.org.apache.bcel.internal.Constants; 25 /** 26 * Super class for the family of arithmetic instructions. 27 * 28 * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A> 29 */ 30 public abstract class ArithmeticInstruction extends Instruction 31 implements TypedInstruction, StackProducer, StackConsumer { 32 /** 33 * Empty constructor needed for the Class.newInstance() statement in 34 * Instruction.readInstruction(). Not to be used otherwise. 35 */ 36 ArithmeticInstruction() {} 37 38 /** 39 * @param opcode of instruction 40 */ 41 protected ArithmeticInstruction(short opcode) { 42 super(opcode, (short)1); 43 } 44 45 /** @return type associated with the instruction 46 */ 47 public Type getType(ConstantPoolGen cp) { 48 switch(opcode) { 49 case Constants.DADD: case Constants.DDIV: case Constants.DMUL: 50 case Constants.DNEG: case Constants.DREM: case Constants.DSUB: 51 return Type.DOUBLE; 52 53 case Constants.FADD: case Constants.FDIV: case Constants.FMUL: 54 case Constants.FNEG: case Constants.FREM: case Constants.FSUB: 55 return Type.FLOAT; 56 57 case Constants.IADD: case Constants.IAND: case Constants.IDIV: 58 case Constants.IMUL: case Constants.INEG: case Constants.IOR: case Constants.IREM: 59 case Constants.ISHL: case Constants.ISHR: case Constants.ISUB: 60 case Constants.IUSHR: case Constants.IXOR: 61 return Type.INT; 62 63 case Constants.LADD: case Constants.LAND: case Constants.LDIV: 64 case Constants.LMUL: case Constants.LNEG: case Constants.LOR: case Constants.LREM: 65 case Constants.LSHL: case Constants.LSHR: case Constants.LSUB: 66 case Constants.LUSHR: case Constants.LXOR: 67 return Type.LONG; 68 69 default: // Never reached 70 throw new ClassGenException("Unknown type " + opcode); 71 } 72 } 73 } | 4 */ 5 /* 6 * Licensed to the Apache Software Foundation (ASF) under one or more 7 * contributor license agreements. See the NOTICE file distributed with 8 * this work for additional information regarding copyright ownership. 9 * The ASF licenses this file to You under the Apache License, Version 2.0 10 * (the "License"); you may not use this file except in compliance with 11 * the License. You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 */ 21 22 package com.sun.org.apache.bcel.internal.generic; 23 24 import com.sun.org.apache.bcel.internal.Const; 25 26 /** 27 * Super class for the family of arithmetic instructions. 28 * 29 * @version $Id: ArithmeticInstruction.java 1747278 2016-06-07 17:28:43Z britter $ 30 */ 31 public abstract class ArithmeticInstruction extends Instruction implements TypedInstruction, 32 StackProducer, StackConsumer { 33 34 /** 35 * Empty constructor needed for the Class.newInstance() statement in 36 * Instruction.readInstruction(). Not to be used otherwise. 37 */ 38 ArithmeticInstruction() { 39 } 40 41 42 /** 43 * @param opcode of instruction 44 */ 45 protected ArithmeticInstruction(final short opcode) { 46 super(opcode, (short) 1); 47 } 48 49 50 /** @return type associated with the instruction 51 */ 52 @Override 53 public Type getType( final ConstantPoolGen cp ) { 54 final short _opcode = super.getOpcode(); 55 switch (_opcode) { 56 case Const.DADD: 57 case Const.DDIV: 58 case Const.DMUL: 59 case Const.DNEG: 60 case Const.DREM: 61 case Const.DSUB: 62 return Type.DOUBLE; 63 case Const.FADD: 64 case Const.FDIV: 65 case Const.FMUL: 66 case Const.FNEG: 67 case Const.FREM: 68 case Const.FSUB: 69 return Type.FLOAT; 70 case Const.IADD: 71 case Const.IAND: 72 case Const.IDIV: 73 case Const.IMUL: 74 case Const.INEG: 75 case Const.IOR: 76 case Const.IREM: 77 case Const.ISHL: 78 case Const.ISHR: 79 case Const.ISUB: 80 case Const.IUSHR: 81 case Const.IXOR: 82 return Type.INT; 83 case Const.LADD: 84 case Const.LAND: 85 case Const.LDIV: 86 case Const.LMUL: 87 case Const.LNEG: 88 case Const.LOR: 89 case Const.LREM: 90 case Const.LSHL: 91 case Const.LSHR: 92 case Const.LSUB: 93 case Const.LUSHR: 94 case Const.LXOR: 95 return Type.LONG; 96 default: // Never reached 97 throw new ClassGenException("Unknown type " + _opcode); 98 } 99 } 100 } |